L98.423 – Non-pressure chronic ulcer of back with necrosis of muscle
ICD-10-CM 2027 diagnosis code · Other disorders of the skin and subcutaneous tissue
- Code
L98.423(claims format:L98423)- Description
- Non-pressure chronic ulcer of back with necrosis of muscle
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 12. Diseases of the skin and subcutaneous tissue (L00-L99)
- Block
- L80-L99 Other disorders of the skin and subcutaneous tissue
- Parent codes
- L98 › L98.4 › L98.42
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
L98.4 – Non-pressure chronic ulcer of skin, not elsewhere classified
- Chronic ulcer of skin NOS
- Tropical ulcer NOS
- Ulcer of skin NOS
Index terms for L98.423
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in L98.42
- L98.421 – Non-pressure chronic ulcer of back limited to breakdown of skinBillable
- L98.422 – Non-pressure chronic ulcer of back with fat layer exposedBillable
- L98.424 – Non-pressure chronic ulcer of back with necrosis of boneBillable
- L98.425 – Non-pressure chronic ulcer of back with muscle involvement without evidence of necrosisBillable
- L98.426 – Non-pressure chronic ulcer of back with bone involvement without evidence of necrosisBillable
- L98.428 – Non-pressure chronic ulcer of back with other specified severityBillable
- L98.429 – Non-pressure chronic ulcer of back with unspecified severityBillable
Frequently asked questions
What is ICD-10 code L98.423?
L98.423 is the ICD-10-CM code for non-pressure chronic ulcer of back with necrosis of muscle, in the block L80-L99 (Other disorders of the skin and subcutaneous tissue).
Is L98.423 a billable code?
Yes. L98.423 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does L98.423 belong to?
It belongs to category L98 – Other disorders of skin and subcutaneous tissue, not elsewhere classified.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.